Portersville, PA Weather & Growing Conditions
This Afternoon
84°F
Sunny
Sunny, with a high near 84. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Sunny | 3 mph SE | 0% |
| Tonight | 64°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SE | 30% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph S | 61% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 65% |
| Thursday Night | 66°F | Showers And Thunderstorms Likely | 3 mph S | 65% |
| Friday | 83°F | Showers And Thunderstorms | 2 to 7 mph SW | 84% |
| Friday Night | 64°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 84% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 41% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Sunday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 19% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 6 mph SW | 26% |
| Monday | 86°F | Chance Rain Showers | 6 to 9 mph SW | 40% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 48% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portersville, PA
Last spring frost
May 7
First fall frost
Oct 14
Growing season
158 days
Hardiness zone
6a
Explore more for Portersville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Slippery Rock 1 Ssw, Pa (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.